Gear Components
Gear components range from chains and sprockets to controls and electronic connections. Identify your system family before servicing or upgrading. Compare mechanical or electronic operation and manufacturer compatibility alongside gear count.
Gear Components collection
Shimano 105 FC-R7100 12 Gear Compatible Bicycle Crankset 172.5mm 50-34T
Shimano FC-M371 9 Speed Compatible Crankset 48/36/26T 175mm EFCM371E866CL
Shimano Dura-Ace Di2 FD-R9250 Front Derailleur IFDR9250F
Shimano Tourney FC-TY301 48/38/28T 175mm Crankset AFCTY301E888CL
Shimano CS-HG200-8 Gear Compatible Bicycles Ruble/Cassette 12-32
Shimano Road STI Silicone Cover Set ST-R8000-ST-R7000 Black Y0DK98010
Shimano SL-M315 Right Left Shift Lever Set 3x8 RapidFire Plus CB
Everything About Cycling Clothing
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Shimano Cues SL-U4000-L 2 Speed Left Gear Shifter ESLU4000LBP
Shimano Deore XT 32T Chainring SM-CRM85 FC-M8100-1/M8130-1 ISMCRM85A2
Shimano 105 Di2 R7150 50-34T 2x12 Hydraulic Disc Brake Bicycle Group Set
Shimano 105 ST-R7170/BR-R7170 Hydraulic Brake Di2 Right Shift Brake Lever Set 2x12s RW
Shimano 105 ST-R7170/BR-R7170 Hydraulic Brake Di2 Left Shift Brake Lever Set 2x12s FW
Shimano Ultegra Cs-r8000 11-28T 11 Cassette Ruble
Shimano ST-EF500 7s Right Shift-Brake Lever ESTEF5002RV7AL
SunRun 48T Single Crankset Aluminum Double Housing 170mm AYK-129
Pro Crankset Protection Silicone FC-M9100 PRAC0241
Sram NX Eagle 12 Speed Compatible Bicycle Chain 406058
Shimano FC-RS510 Bicycle Crankset 11 Gear 50/34T 172.5mm
Shimano Tiagra Long Leg Rear Derailleur 10 Speed RD-4700-GS
Shimano Ultegra Di2 Front Derailleur FD-R8150 Dual 2x12V Direct Mount
Sram GX Eagle AXS Upgrade Kit Vites Grup Set
Shimano Hollowtech Crankset Left Arm Screw Y1P417000
Consider the whole system when changing one part
Derailleurs, shifters, cassette and chain must meet each other's requirements. Equal gear counts do not always form a compatible system. Electronic parts have battery, charger, cable and software requirements too. Read each groupset component; do not assume brakes or bottom bracket are included. Assess the problem and component condition first: newer models are not always direct replacements.
- List existing component model codes.
- Check frame attachment, freehub body and crank compatibility.
- Match spares with the component's service information.
Is matching gear count enough?
No. System family, controls and other interfaces matter too. Read manufacturer pairing information.
Does an electronic charger fit every battery?
Verify supported battery and connection type. Compare charger code with exact battery model instead of relying on appearance.
